23
EN
G
LIS
H
Troubleshooting
Detection of errors
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If an error occurs during the operation, an LED flickers and the operation is stopped except the LED.
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If you re-operate the air conditioner, it operates normally at first, then detect an error again.
LED Display on the indoor unit
LED Display
Abnormal conditions
Indicators
Operating
Green
Red Yellow Green Orange
MH
✴✴✴
FSBA
MH
✴✴✴
FMBA
Power reset
X
X
X
X
Error of temperature sensor in indoor unit (open/
short)
X
X
X
X
Error of heat exchanger sensor in indoor unit
Error of heat exchanger out sensor in indoor unit
Error of outlet temperature sensor in indoor unit
(open/short): for heat pump models only
X
X
X
Error of mixed operation
X
X
X
Error of indoor fan motor: Below 450RPM for 15
minutes
X
X
X
X
Error of outdoor temperature sensor
Error of COND sensor
Error of DISCHARGE sensor
X
X
X
1. No communication for 2 minutes between indoor
unit and outdoor unit (communication error for
more than 2 minutes)
2. Indoor unit receiving the communication error
from outdoor unit
3. Outdoor unit tracking 3 minutes error
4. When sending the communication error from
outdoor unit due to the mismatching of the
communication numbers and installed numbers
after completion of tracking (communication
error for more than 2 minutes)
X
X
X
Error of indoor unit:
Displayed on the indoor
unit regardless of
operation
●
On
Flickering
X Off
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If you turn off the air conditioner when the LED is flickering, the LED is also turned off.
FJM IDU-PH_Cassette type_IM_31595A-04_EN.indd 23
2015-11-16 오후 4:52:24
